Inside Google's struggle to filter lies from breaking news

Facebook has a fake news problem. Google has an evil unicorn problem.

“Evil unicorns” — a term some Google engineers once coined, according to a former executive — are unverified posts on obscure topics, full of lies. They pop up from time to time on the web and find their way into Google's search results. In an ideal world, Google’s search algorithm should force these fake, pernicious creatures so low in search results that they are buried deep in the web where few can find them.

Here's the problem: These unicorns — no, they've got nothing to do with highly valued start-ups